linux-kernel - Re: [PATCH v3 3/4] arm64: dts: qcom: qcs615: add the SCM node

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Message-ID: <645c9887-4df2-4ab2-a048-ba79a97b8d2f@quicinc.com>
Date: Wed, 30 Oct 2024 16:42:19 +0800
From: Qingqing Zhou <quic_qqzhou@...cinc.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
CC: <andersson@...nel.org>, <konradybcio@...nel.org>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <robimarko@...il.com>,
        <will@...nel.org>, <robin.murphy@....com>, <joro@...tes.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <iommu@...ts.linux.dev>
Subject: Re: [PATCH v3 3/4] arm64: dts: qcom: qcs615: add the SCM node



在 10/25/2024 2:02 PM, Dmitry Baryshkov 写道:
> On Fri, Oct 25, 2024 at 08:37:31AM +0530, Qingqing Zhou wrote:
>> Add the SCM node for QCS615 platform. It is an interface to
>> communicate to the secure firmware.
>>
>> Signed-off-by: Qingqing Zhou <quic_qqzhou@...cinc.com>
>> ---
>>  arch/arm64/boot/dts/qcom/qcs615.dtsi | 7 +++++++
>>  1 file changed, 7 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/qcs615.dtsi b/arch/arm64/boot/dts/qcom/qcs615.dtsi
>> index ac4c4c751da1..027c5125f36b 100644
>> --- a/arch/arm64/boot/dts/qcom/qcs615.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/qcs615.dtsi
>> @@ -278,6 +278,13 @@
>>  		reg = <0 0x80000000 0 0>;
>>  	};
>>  
>> +	firmware {
>> +		scm {
>> +			compatible = "qcom,scm-qcs615", "qcom,scm";
>> +			qcom,dload-mode = <&tcsr 0x13000>;
> 
> No CRYPTO clock?
NO, response from Qualcomm clock team is "the current QCS615 RPMH code does not have the clock support for CE clock", so we don't configure clocks here.
> 
>> +		};
>> +	};
>> +
>>  	camnoc_virt: interconnect-0 {
>>  		compatible = "qcom,qcs615-camnoc-virt";
>>  		#interconnect-cells = <2>;
>> -- 
>> 2.17.1
>>
>